谷氨酰胺对大强度训练后免疫功能恢复的研究

目的:探讨谷氨酰胺对大强度训练后免疫功能的影响。方法:18名运动员随机分成2组,进行3周大强度训练,训练期间分别补充谷氨酰胺(0.3g/kg wt/d)和安慰剂。采集运动员训练周期开始前1天及最后1天次晨的血液,分别测定血浆谷氨酰胺(Gln)、T淋巴细胞亚群。结果:大强度训练会导致血浆谷氨酰胺水平显著下降(P<0.05),CD4+/CD8+比值降低(P<0.05)。补充谷氨酰胺能维持运动后血浆谷氨酰胺水平和减少大负荷训练对机体免疫平衡的影响。     

常压模拟高住低练对大鼠红细胞形态学特征的影响

本研究探讨了常压模拟高住(海拔3000m)低练对大鼠红细胞形态学特征的影响。结果表明:低住安静组大鼠MCH低于其他三组大鼠,具有显著性差异(P<0.05);低住安静组平均红细胞血红蛋白浓度(MCHC)和常压高住安静组没有明显的差别,但低住低练组的MCHC明显地高于常压高住低练组,具有非常显著性差异(P<0.01)。结论:常压模拟高住低练时,红细胞血红蛋白合成减少,应加强营养物质铁、维生素B12、叶酸的补充。     

Legal Defensibility of Standards: Issues and Policy Perspectives

What legal issues may arise in setting content or performance standards? What precedents are relevant? What practices are defensible?     

A nation at risk: The economic consequences of neglecting career development

Conclusion Computer-based career systems should be the focal point of popular, and effective career development initiatives which are of tremendous benefit to individuals. Such initiatives also have the potential to significantly reduce public expenditures and enhance the nation's competitive position internationally. The key lies in helping people understand that we can no longer afford to neglect the career development needs of Americans.I am most grateful for this opportunity to share my thoughts with you. I encourage you to promote the use of computer-based career systems by defining their benefits in economic terms. However, be sure you can prove your system does more than simply entertain its users, or leave them with extensive computer printouts.Phillip S. Jarvis is Manager, Careerware Research and Product Design, STM Systems Corp., Ottawa, Ontario, Canada and the author of CHOICES. This is the text of a paper presented to the Annual Conference of the Association of Computer-Based Systems for Career Information ((ACSCI) in St. Louis, Missouri on December 2, 1988.     

浅析兵家武德文化

在继承中华民族传统美德的基础上，研究和开发具有时代价值意义的武德资源，对于发挥武术文化在世界上的影响，为武术真正走向世界都具有重要的意义。     

发展传统武术的思考

传统武术已有几千年的发展历史，要发扬光大，就要发展自已特色，关注传统武术，让武术为世界人民的健康服务。